k20learning.com - dns.ninja

`k20learning.com`

DNSSEC	⚠️ Not signed
A	74.208.71.55^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
		PTR	`k20learning.com`
NS	`ns1018.ui-dns.de` ⭐
		A	2607:f1c0:fe:53:185:132:32:18^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1018.ui-dns.de`
		A	185.132.32.18^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1018.ui-dns.de`
NS	`ns1018.ui-dns.biz`
		A	2607:f1c0:fe:53:185:132:33:18^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1018.ui-dns.biz`
		A	185.132.33.18^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1018.ui-dns.biz`
NS	`ns1018.ui-dns.com`
		A	2607:f1c0:fe:53:185:132:34:18^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1018.ui-dns.com`
		A	185.132.34.18^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1018.ui-dns.com`
NS	`ns1018.ui-dns.org`
		A	2607:f1c0:fe:53:185:132:35:18^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1018.ui-dns.org`
		A	185.132.35.18^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1018.ui-dns.org`
MX	`mx00.ionos.com` ⭐
		A	74.208.114.65^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx00.perfora.net`
MX	`mx01.ionos.com` ⭐
		A	74.208.114.66^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx01.perfora.net`
TXT	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	`ns1018.ui-dns.de`hostmaster@1and1.com 2014-09-03 #9

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1786710549

PTR for

55.71.208.74.in-addr.arpa

Same first word

k20learning.com

DNS History

11 records (7 active, 4 former)

●NSns1018.ui-dns.biz2026-04-08 → 2026-08-14 · 3 obs

○ 2017-11-14 09:53:54
● 2026-04-08 20:48:22
● 2026-08-14 12:44:46

●NSns1018.ui-dns.com2026-04-08 → 2026-08-14 · 3 obs

○ 2017-11-14 09:53:54
● 2026-04-08 20:48:22
● 2026-08-14 12:44:46

●NSns1018.ui-dns.de2026-04-08 → 2026-08-14 · 3 obs

○ 2017-11-14 09:53:54
● 2026-04-08 20:48:22
● 2026-08-14 12:44:46

●NSns1018.ui-dns.org2026-04-08 → 2026-08-14 · 3 obs

○ 2017-11-14 09:53:54
● 2026-04-08 20:48:22
● 2026-08-14 12:44:46

○NSns57.1and1.com2015-08-17 → 2017-11-14 · 4 obs

● 2015-08-17 08:41:32
● 2017-11-14 09:53:54
○ 2026-04-08 20:48:22
○ 2026-08-14 12:44:46

○NSns58.1and1.com2015-08-17 → 2017-11-14 · 4 obs

● 2015-08-17 08:41:32
● 2017-11-14 09:53:54
○ 2026-04-08 20:48:22
○ 2026-08-14 12:44:46

○MXmx00.1and1.com2015-08-17 → 2017-11-14 · 4 obs

● 2015-08-17 08:41:32
● 2017-11-14 09:53:54
○ 2026-04-08 20:48:22
○ 2026-08-14 12:44:46

●MXmx00.ionos.com2026-04-08 → 2026-08-14 · 3 obs

○ 2017-11-14 09:53:54
● 2026-04-08 20:48:22
● 2026-08-14 12:44:46

○MXmx01.1and1.com2015-08-17 → 2017-11-14 · 4 obs

● 2015-08-17 08:41:32
● 2017-11-14 09:53:54
○ 2026-04-08 20:48:22
○ 2026-08-14 12:44:46

●MXmx01.ionos.com2026-04-08 → 2026-08-14 · 3 obs

○ 2017-11-14 09:53:54
● 2026-04-08 20:48:22
● 2026-08-14 12:44:46

●A74.208.71.552015-08-17 → 2026-08-14 · 2 obs

● 2015-08-17 08:41:32
● 2026-08-14 12:44:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
k20learning.com	ns1018.ui-dns.de, ns1018.ui-dns.biz, ns1018.ui-dns.org, ns1018.ui-dns.com	2 records

✅ Authoritative Response

Server:185.132.35.18

NS records: ns1018.ui-dns.de, ns1018.ui-dns.biz, ns1018.ui-dns.org, ns1018.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for k20learning.com (unsigned zone)

⏱️ Timing

Total: 544ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`74.208.71.55`
NS	4	`ns1018.ui-dns.de, ns1018.ui-dns.org...`
MX	2	`mx00.ionos.com (pri: 10), mx01.ionos.com (pri: 10)`
TXT	1	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	1	`ns1018.ui-dns.de hostmaster.1and1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1018.ui-dns.com, ns1018.ui-dns.com)

Analysis

IP Addresses

k20learning.com resolves to one IP address: 74.208.71.55.

caddango.com, cadteach.com, drlearn.com and two other host names share IP numbers with k20learning.com.

Name Servers

The authoritative name servers for k20learning.com are ns1018.ui-dns.biz, ns1018.ui-dns.com, ns1018.ui-dns.de and ns1018.ui-dns.org.

There is at least partial name server overlap between k20learning.com and other domains — ferienhof-remmershof.de, okini-sushi-grill.com, moorehavenpsychiatry.com and two more among them.

These name servers regularly appear alongside ns1118.ui-dns.com, ns1115.ui-dns.de, ns1026.ui-dns.biz and 7 other name servers in NS record sets.

All four hostnames — ns1018.ui-dns.biz, ns1018.ui-dns.com, ns1018.ui-dns.de and ns1018.ui-dns.org — resolve to two IP numbers apiece: ns1018.ui-dns.biz to 185.132.33.18 and 2607:f1c0:fe:53:185:132:33:18; ns1018.ui-dns.com to 185.132.34.18 and 2607:f1c0:fe:53:185:132:34:18; ns1018.ui-dns.de to 185.132.32.18 and 2607:f1c0:fe:53:185:132:32:18; ns1018.ui-dns.org to 185.132.35.18 and 2607:f1c0:fe:53:185:132:35:18.

Mail Servers

Mail for k20learning.com is handled by two mail servers — mx00.ionos.com and mx01.ionos.com.

k20learning.com uses an identical mail server configuration to several other domains — among them ftgreenesports.org, awordforthought.com, casabambini.net and two more.

mx00.ionos.com → 74.208.114.65 and mx01.ionos.com → 74.208.114.66: one IP number per host name.